Preheat the oven to 400 Degrees F. Line a baking sheet with parchment paper.,Use a 4-inch round cookie cutter to cut 6 circles from the pie crust.,Reserve the scraps for another use.,Dollop 1 tablespoon peanut butter on one side of a round, then top with 1 teaspoon chopped banana and 1 teaspoon coconut.,______,Decoratively crimp the edges, then cut 2 small slits on top.,Repeat with the remaining dough and fillings.,(You may have some leftover banana.,).,Transfer to the baking sheet, spacing 2 inches apart.,Brush the beaten egg on the tops.,Bake until golden brown, about 20 minutes.,Cool completely.